You, my love, are playing against the German (4,6)
I believe the answer is:
dear reader
'you' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'my love are playing against the german' is the wordplay.
'my love' becomes 'dear' (I can't justify this - if you can you should give a lot more credence to this answer).
'playing' indicates an anagram.
'against' is a charade indicator (letters next to each other).
'the german' becomes 'der' ('the' in German).
'are' anagrammed gives 'rea'.
'dear'+'rea'+'der'='DEAR READER'
Can you help me to learn more?
I've seen this clue in the Evening Standard.
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